Reflector for head-lights



(No Model.)

Tye. COOPER.

. REFLECTOR FOR HEAD LIGHTS, &c. No. 370,687. Patented SeptJZ'Y, 1887 WITNESSES 4 m lNVENTOR v 7 MW%L- ATTORNEYS N. PKTERS. Pluolobfihograplur. Washmgion, B c

UNITED STATES PATENT OFFICE.

THOMAS CHARLES COOPER, OF WINONA, MINNESOTA.

REFLECTOR FOR HEAD-LIGHTS, 84c.

SPECIFICATION forming part of Letters Patent N 0. 370,687, dated September 27, 1887.

Application filed November 16,1886. Serial No. 219.041.

To all whom it may concern:

Be it known that I, THOMAS CHARLES COOPER, acitizen of the United States, and a resident ofWinona, in the county of Winona and State of Minnesota, have invented certain new and useful Improvements in Reflectors for Head-Lights,&c.; and I do declarethe following to be a full, clear, and exact description of the invention,such as will enable others skilled in the art to which it appertains to make and use the same, reference being had to the accompanying drawing, and to letters or figures of reference marked thereon, which form apart of this specification.

The invention relates to improvements in reflectors for locomotive head-lights; and it consists in the construction and novel combination of parts, hereinafter described, and pointed out in the claims.

The figure in the drawing represents a central vertical section of the invention.

Referring to the drawing by letter, 0 rep resents the lamp of the head-light, and A represents a parabolic reflector attached to the lamp-standard in such position that the light of the lamp 0 will be in its focus, so that the 1 reflector will send out a beam of parallel rays of parallel rays; but should the engineer de- (No model.)

sire to concentrate or focus his light at a certain distance ahead of the engine he attaches the reflector B, which cuts off most of the light from the reflector A, but by its inner reflecting-surface focuses or concentrates the light at the desired point. The outer surface of the conical frustum B is also a reflectingsurface, so that the light that reaches the reflector Ain front of the base of the reflector B will, by means of multiplied reflect-ions, be concentrated or focused in front of the locomotive.

Having described my invention, I claim 1. The combination of the parabolic reflector, the lamp with its light in the focus thereof, and the detachable reflector having an inner reflecting-surface of the shape ofthe frustum of a cone, and situated with its axis coincident with that of the parabolic mirror and its base adjacent to the light, substan tially as specified.

2. The combination of the parabolic reflector, the lamp with its light in the focus thereof, and the detachable reflectorv having the shape of a conical frustum, provided with inner and outer reflecting-surfaces, and situated with its axis coincident with that of the parabolic reflector and its base adjacent to the lamp, substantially as specified.

In testimony whereof I affix my signature in presence of two witnesses.

THOMAS CHARLES COOPER.

Witnesses:

J. N. MAYBURY, D. E. VANCE. 

